Means and method of hemodialysis



f 5 M DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at therequest oi! the applicant or owner in accordance with the Notice of Apr.11, 1968, 849 0.G. 1221. Idenjtiflcation is by serial number ot theapplication and the heading indicates the number of pages ofspecification, including clainisa and 01! sheets of drawing contained inthe application as originally filed. The file or this application isavailable to the public for inspection; reproduction may be purchasedfor 30 cents per sheet.

g I Applications published under the Defensive Publication Program havenot been examined as to the merits of allezed invention. The PatentOflice makes no assertion as to the novelty of the disclosed subjectmatter.

PUBLISHED OCTOBER 28, 1969 762,241 MEANS AND METHOD OF HEMODIALYSISCharles H. Benton, 755 Ridge Road, Rochester, N.Y. 14650 Filed Sept. 16,1968. Published Oct. 28, 1969 Int. Cl. A61m 5/00 US. Cl. 128-214 1 SheetDrawing. 9 Pages Specification A dialyzing system incorporating needlecannulas for coupling a dialyzing apparatus to a patient by insertion ofthe needle cannulas into a patients vein and associated artery, wherebythe patients blood is shunted through the system.

FIG. 1 shows a sterile container 3 enclosing a system wherein hollowneedles 2 and 4 are carried in the ends of flexible tubes 6 and 8. Theopposite ends of the tubes carry fittings 10 and 11 which are heldtogether by a clip 13 so as to establish a shunt for blood flow when thesystem is removed from the container and the needles are inserted in avein and artery of a patient.

As shown in FIG. 2, after the shunt is established, the fittings 10 and11 are disengaged and coupled to dialyzing apparatus 12, which acts asan artificial kidney.

Oct. 28, 1969 c. H. BENTON A DEFTFUB.

MEANS AND METHOD OF HEMODIALYSIS Filed Sept. 16. 1968 D/ALYZANT 0/4 LYZ/NG A PPA RA rus CHARL ES H. BEN TON A 770 Y-S'

